... )strict quality control 5)OEM&ODM aluminum extrusion heat sinks1)Material: aluminum alloy2)Workmanship: aluminum die casting3 ... ground door & window series, generic decorative series, heat insulation cold bridge series,Container floor,Radiator,industrial profile series ... .2.Trait:High corrosion resistance performance,Heat-resisting performance,Prevent mildew performance,Aluminum design is ...